CVE-2023-32059: Vyper Vyper Vulnerable To Incorrect Ordering Vulnerability

HIGH
Advisory Identifier: GHSA-ph9x-4vc9-m39g
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CVSS 7.5
CWE-683
Published
Advisory Summary

CVE-2023-32059 is a HIGH (CVSS 7.5) vyper vulnerable to incorrect ordering vulnerability (CWE-683: Function Call With Incorrect Order of Arguments) affecting Vyper libraries in the PyPI ecosystem. The issue involves vyper vulnerable to incorrect ordering of arguments for kwargs passed to internal calls. Remediation is available by upgrading affected packages to version 0.3.8.

CVE-2023-32059 at a Glance

CVE Identifier CVE-2023-32059
GHSA Identifier GHSA-ph9x-4vc9-m39g
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-683: Function Call With Incorrect Order of Arguments
Affected Product Vyper
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2023-32059

To remediate this vulnerability, upgrade all affected Vyper dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

vyper fixed: 0.3.8 
pip install vyper>=0.3.8
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show vyper

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2023-32059, inspect your installed packages using pip:

pip show vyper

Analyze the terminal output to locate any version of Vyper in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.3.8), your application is affected.

Note: The pip show vyper command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-683: Function Call With Incorrect Order of Arguments, where the product calls a function, procedure, or routine, but the caller specifies the arguments in an incorrect order, leading to resultant weaknesses. In Vyper, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact Internal calls to internal functions with more than 1 default argument are compiled incorrectly. Depending on the number of arguments provided in the call, the defaults are added not right-to-left, but left-to-right. If the types are incompatible, typechecking is bypassed. In the `bar()` function in the following code, `self.foo(13)` is compiled to `self.foo(13,12)` instead of `self.foo(13,1337)`. ```vyper @internal def foo(a:uint256 = 12, b:uint256 = 1337): pass @internal def bar(): self.foo(13) ``` note that at the time of publication, the ability to pass kwargs to internal functions is an undocumented feature that does not seem to be widely used. ### Patches patched in c3e68c302aa6e1429946473769dd1232145822ac ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ ### References _Are there any links users can visit to find out more?_

CVE-2023-32059 Affected Vyper Versions

1 component(s)
Fixed Versions:
0.3.8
Product / Package Ecosystem Affected Versions Fixed Version
vyper
pypi/vyper
PyPI
< 0.3.8
0.3.8

References

GitHub Advisory / Wiki ADVISORY
https://github.com/vyperlang/vyper/security/advisories/GHSA-ph9x-4vc9-m39g
NVD — CVE-2023-32059 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-32059
Security Fix Commit FIX COMMIT
https://github.com/vyperlang/vyper/commit/c3e68c302aa6e1429946473769dd1232145822ac
Vyper Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2023-79.yaml
Vyper Source Repository REPOSITORY
https://github.com/vyperlang/vyper

Frequently Asked Questions

What is CVE-2023-32059?
CVE-2023-32059 is a security vulnerability in Vyper involving Vyper vulnerable to incorrect ordering of arguments for kwargs passed to internal calls under CWE-683: Function Call With Incorrect Order of Arguments.
Which Vyper versions are affected?
Affected versions include releases prior to 0.3.8 across affected packages: vyper.
What version fixes CVE-2023-32059?
Upgrading to 0.3.8 (or the latest patched release for your respective branch) resolves the vulnerability.
Is vyper affected?
Yes, vyper is affected in releases prior to 0.3.8. Upgrade your dependency to 0.3.8 or later.
What is the CVSS score of CVE-2023-32059?
CVE-2023-32059 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2023-32059?
CVE-2023-32059 is classified under CWE-683: Function Call With Incorrect Order of Arguments (The product calls a function, procedure, or routine, but the caller specifies the arguments in an incorrect order, leading to resultant weaknesses.).
How can I check PyPI dependencies for CVE-2023-32059?
Run the dependency tree command: 'pip show vyper'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-ph9x-4vc9-m39g",
  "modified" : "2024-11-19T16:33:02Z",
  "published" : "2023-05-12T20:21:00Z",
  "aliases" : [ "CVE-2023-32059" ],
  "summary" : "Vyper vulnerable to incorrect ordering of arguments for kwargs passed to internal calls",
  "details" : "### Impact\n\nInternal calls to internal functions with more than 1 default argument are compiled incorrectly. Depending on the number of arguments\nprovided in the call, the defaults are added not right-to-left, but left-to-right. If the types are incompatible,\ntypechecking is bypassed. In the `bar()` function in the following code, `self.foo(13)` is compiled to\n`self.foo(13,12)` instead of `self.foo(13,1337)`.\n\n```vyper\n@internal\ndef foo(a:uint256 = 12, b:uint256 = 1337):\n    pass\n\n@internal\ndef bar():\n    self.foo(13)\n```\n\nnote that at the time of publication, the ability to pass kwargs to internal functions is an undocumented feature that does not seem to be widely used.\n\n### Patches\npatched in c3e68c302aa6e1429946473769dd1232145822ac\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\n### References\n_Are there any links users can visit to find out more?_\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "vyper"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.3.8"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/vyperlang/vyper/security/advisories/GHSA-ph9x-4vc9-m39g"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-32059"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vyperlang/vyper/commit/c3e68c302aa6e1429946473769dd1232145822ac"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2023-79.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/vyperlang/vyper"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-683" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-05-12T20:21:00Z",
    "nvd_published_at" : "2023-05-11T22:15:11Z"
  }
}